20465757

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{293}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 32928000

約数和(自身を除く): 12462243

約数列:

[1, 3, 9, 13, 27, 39, 117, 199, 293, 351, 597, 879, 1791, 2587, 2637, 3809, 5373, 7761, 7911, 11427, 23283, 34281, 58307, 69849, 102843, 174921, 524763, 757991, 1574289, 2273973, 6821919, 20465757]

約数ペア:

[(1, 20465757), (3, 6821919), (9, 2273973), (13, 1574289), (27, 757991), (39, 524763), (117, 174921), (199, 102843), (293, 69849), (351, 58307), (597, 34281), (879, 23283), (1791, 11427), (2587, 7911), (2637, 7761), (3809, 5373)]